Plenty of wildlife can be seen in Botswana and Namibia as the dry season is at its peak and the temperatures soar. The Okavango Delta at its fullest, drawing plenty of thirsty animals, while in Etosha, the sparse waterholes are popular.
The heat finally begins to ease in the Moroccan Sahara, but it's still warm, sunny and great for an activity holiday. The coast is ideal for an autumn beach break.
Andalucia, Croatia, Greece, southern Italy, southern Portugal and Turkey's southern and western coasts also still have great weather for cycling, hiking or water-based activities - while avoiding the summer crowds and prices.
This is one of the best months to see the Northern Lights in Iceland. But there's still some daylight, meaning you can still get out and do other activities.
This is a great time to go trekking in Nepal; you'll miss the summer monsoons and the winter freeze.
California's Indian summer makes this a great time to visit; the fog disappears, revealing the grand views ad the climate is ideal for trekking, climbing, mountain biking and water-based activities.
Being on the equator, you'll be told that Ecuador has no "best time to go" as its climate is pretty constant. However, we think October is a great time as you'll miss the school holiday crowds. This is also the drier season, so the Amazon is more accessible and wildlife more easily viewed.
Where NOT to go on holiday in October
This is the tail end of the monsoon season across much of mainland Southeast Asia, causing travel disruption in most of the region, with some hotels and roads closing. You'll find some sunny, green pockets though, such as northern Vietnam, Cambodia and Burma.
It's hurricane season in Cuba - with the southeast being the worst affected.
Finland and Scandinavia experience the worst of all the seasons - it's dark, cold and damp without the snow - meaning both summer and winter activities are out of the question. Wait a couple of months for fairytale winter scenes.
It's China's national holiday for the first ten days of the month - that means 1.4 billion people are on holiday, and competing with you for flights, hotel rooms and restaurants.